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Division Spotlight
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Yuichi Sano, Yoshihiko Shinoda, Masaki Ozawa
Nuclear Technology | Volume 148 | Number 3 | December 2004 | Pages 348-357
Technical Paper | Reprocessing | doi.org/10.13182/NT04-A3572
Articles are hosted by Taylor and Francis Online.
Based on state-of-the-art separation chemistry, extended recycling of rare-metal fission products (RMFPs) from fast breeder reactors is examined as a new strategy for spent fuel reprocessing. Fission product fractionation is in accordance with the modern trend toward zero emission of toxic materials; salt-free separation utilizing in situ electrochemistry will suit the current direction of research and development in the back end of the nuclear fuel cycle. A catalytic electrolytic extraction and dissolution method, which would avoid secondary waste arising, was proposed to separate the target, the radioactive but potentially strategic elements Pd, Ru, Rh, Tc, Te, and Se, dissolved in high-level liquid waste (HLLW). It was confirmed that RMFPs could be recovered essentially from simulated HLLW with the conceptual scheme, although further studies for the optimization were required to obtain higher recovery ratios of RMFPs. Elemental separation not only offers alternative material resources to meet expanding demands for catalysts in fuel cell/hydrogen energy systems but is also the first step for transmutation or other selective strategies for waste management of long-lived fission products.